package e2e

import (

"net/http"

"os/exec"

"strings"

"testing"

)

// Chapter 24 gives the file view a history link and the config page history, blame and raw.

func TestOneFileHasItsOwnHistory(t *testing.T) {

if _, err := exec.LookPath("git"); err != nil {

t.Skip("git is not installed")

}

in := newInstance(t)

john := in.account("john")

work := seed(t, in, john, "john", "johnbot")

write(t, work, "conn.go", "package irc\n\nfunc dial() error { return nil }\n")

run(t, work, "git", "add", "-A")

run(t, work, "git", "commit", "-qm", "add the dialer")

write(t, work, "other.go", "package irc\n\nfunc unrelated() {}\n")

run(t, work, "git", "add", "-A")

run(t, work, "git", "commit", "-qm", "a commit that never touches the dialer")

write(t, work, "conn.go", "package irc\n\nfunc dial() error { return errBusy }\n")

run(t, work, "git", "add", "-A")

run(t, work, "git", "commit", "-qm", "the dialer returns busy now")

run(t, work, "git", "push", "-q", in.url(john, "/john/johnbot"), "master")

// The file view's history link is the only way to ask this question from a page.

code, _, file := get(t, in.http.URL+"/john/johnbot/file/master/conn.go")

if code != http.StatusOK {

t.Fatalf("the file view answered %d", code)

}

if !strings.Contains(file, `href="/john/johnbot?path=conn.go"`) {

t.Errorf("the file view does not link to its own history:\n%s", footOf(file))

}

code, _, hist := get(t, in.http.URL+"/john/johnbot?path=conn.go")

if code != http.StatusOK {

t.Fatalf("the history answered %d", code)

}

for _, want := range []string{"add the dialer", "the dialer returns busy now"} {

if !strings.Contains(hist, want) {

t.Errorf("the history of conn.go lost %q", want)

}

}

// A commit that never touched the file is the whole point of asking for one file.

if strings.Contains(hist, "a commit that never touches the dialer") {

t.Error("the history of conn.go carries a commit that does not touch conn.go")

}

// Every row counts only this file, since that is what asking for one file means.

if !strings.Contains(hist, "conn.go · +1 -1") {

t.Errorf("a row does not count conn.go alone:\n%s", hist)

}

// And it says what it is restricted to, or a reader cannot tell it from the whole log.

if !strings.Contains(hist, "history of") || !strings.Contains(hist, "the whole log") {

t.Error("the history page does not say it is one file, nor offer the way back")

}

// The config page is a file view with a fixed path, so chapter 24 gives it all three links.

code, _, cfg := get(t, in.http.URL+"/john/johnbot/config")

if code != http.StatusOK {

t.Fatalf("the config page answered %d", code)

}

for _, want := range []string{">history</a>", ">blame</a>", ">raw</a>"} {

if !strings.Contains(cfg, want) {

t.Errorf("the config page is missing its %s link", strings.Trim(want, ">/a<"))

}

}

}

// footOf is the last of a page, which is where every one of these links lives.

func footOf(body string) string {

if i := strings.LastIndex(body, `class="foot"`); i >= 0 {

return body[i:]

}

return body

}